Home / 538,303.11-742,875.08-308,902.41

Finding the Fourth Proportional to 538,303.11, 742,875.08 and 308,902.41

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Solution

The fourth proportional to 538,303.11, 742,875.08 and 308,902.41 is: 426,294.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,303.11 : 742,875.08 = 308,902.41 : x
  2. Step 2: Convert to fraction form
    538,303.11/742,875.08 = 308,902.41/x
  3. Step 3: Cross multiply
    538,303.11x = 742,875.08 × 308,902.41
  4. Step 4: Simplify right side
    538,303.11x = 229,475,898,826.57
  5. Step 5: Solve for x
    x = 229,475,898,826.57/538,303.11
  6. Step 6: Final answer
    x = 426,294.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.